Ritek Corporation

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Hsinchu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of photolithography using super-resolution near-field structure
- Patent number 6,506,543
- Issue date Jan 14, 2003
- Ritek Corporation
- Tzu-Feng Tseng
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
75217831 - RITEK
- Serial number 75217831
- Registration number 2288373
- Filing date Dec 23, 1996
- Ritek Incorporation
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments